Intended use:

Usage of Compact Dry SL is a simple and safe test procedure for detection of Salmonella in pre-enriched samples of foods or raw materials. The ready-to-use plates consist of a special 50 mm diameter petri dish containing a detection specific nutrient pad.

General Information:

Using Compact Dry SL Salmonella can be detected from a specific sample pre-enrichment. The detection can be performed safe and easily according to three different criteria:

  1. Color change of the medium from blue-purple to yellow, caused by the alkalization of the medium which is initiated by the Salmonella-specific enzyme lysine-decarboxylase.
  2. Appearance of black-green colonies due to degradation of the chromogenic substrate (green) which is contained in the medium combined with the Salmonella specific production of iron hydrogen sulfide (black).
  3. The motility of Salmonella which is observed by colonies appearing not only at the origin of inoculation, but also at other areas of the nutrient pad.

The ready-to-use, chromogenic Compact Dry plates are suitable for in-process controls as well as controls of finished products. With the optional additional product Promedia ST-25 swab test (Z0302) or Compact Dry Swab (ZCS1002953) Compact Dry plates may also be used for surface sampling and therefore applied for quantitative hygiene monitoring even at surfaces which are difficult to reach.

Benefits:

  • Compact Dry SL is therefore an extremely easy-to-use method and also convincing due to the high time saving; a confirmation test is also not necessary.

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Accessories:

Specifications
Article NumbersHS9401 / HS9402
Test format HS9401: 100 nutrient plates,
HS9402: 40 nutrient plates,
four plates are packed in one aluminum bag.
Sample preparation Viable count in water or liquid foodstuff, in solid foodstuff or in swab tests.
Incubation time 20 - 24 hours at 41 - 43 °C
Detected analyte Samonella = green or black colonies with yellow halo
Evaluation Visual counting
Files
InstructionsGerman/English
MSDSHS9401-HS9402_german.zip (German)
HS9401-HS9402_english.zip (English)
HS9401-HS9402_french.zip (French)
HS9401-HS9402_italian.zip (Italian)
HS9401-HS9402_spanish.zip (Spanish)
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Food microbiology testing_Compact Dry LS_Listeria-monocytogenes light-blue coloniesFood microbiology testing_Compact Dry TC_red colonies of total aerobic mesophilic count